Apple Worm

Level titles in the spoilers are given by me, of course.

1. Spoiler

   Crawl: This level introduces movement. Just use the arrow keys to move to the exit.

   Solution:

   Spoiler

   RRRU RRRRRR

   Notice that you don't have to climb back down because gravity does it for you. Conversely, parts of you can levitate as long as any part is supported.

2. Spoiler

   Feed: This level introduces growth. The apple is necessary to reach the exit.

   Solution:

   Spoiler

   Work your way up to the apple, and then crawl back onto land:
   ULURRR UUURRRR

3. Spoiler

   Gap: This level has a horizontal obstacle instead of a vertical one.

   Hint:

   Spoiler

   To cross the gap, you don't just need to be four long. You also need to be ______.

   Solution:

   Spoiler

   You need to be straight, which means you need to go right thrice in a row before reaching the right ledge:
   RRURRR…
   Now you can cross the gap safely.
   …RRR

4. Spoiler

   Trap: There's many ways to get stuck!

   Hints:

   Spoiler

   You can't actually leave through the gap nearest the exit.

   Which means that you have to return the way you came.

   Spoiler

   Does your tail get in the way?

   Solution:

   Spoiler

   You need to avoid the apple until your tail isn't blocking the left exit.
   RRRRUU…
   Now you can safely take the apple and climb up.
   …LDLLUUU…
   And of course you can cross the small gap.
   …RRRRRR

5. Spoiler

   Confined: Manage your space.

   Solution:

   Spoiler

   As in the previous level, you need to avoid the apple to leave yourself space.
   RRDDR DLLUR UUURR…
   All you need to do now is hang down next to the exit and go through it.
   …RDDR

6. Spoiler

   Double dip: Twice as many dead ends!

   Hint:

   Spoiler

   You need to enter the tunnel and grab the apple. The only entrance that works is the ____ entrance.

   Solution:

   Spoiler

   Align your head with the right tunnel entrance by dropping in tail-first:
   RRRRRUU…
   Then leave through the left side and complete the level.
   …LLLLUU RRRRRRR UU

7. Spoiler

   Leap: The apple is even more difficult to reach.

   Hint:

   Spoiler

   As you know from level 3, you can only get this apple safely by crossing the gap in a specific way.

   Solution:

   Spoiler

   First, you need to make it to the left alcove:
   RRRULDL…
   There's just enough space for a U-turn.
   …LLURDR…
   Cross the gap and finish the level.
   …RRRRR UUUR

8. Spoiler

   Reversible: Try a different approach.

   Hint:

   Spoiler

   You can't grab the apple while crossing over to the right. What if it were the other way?

   Solution:

   Spoiler

   Climb up on the apple to reach the right side:
   RRUU RRRR…
   Now you need to reverse direction and grab the apple safely:
   …UULLDLL…
   Make another reversal on the other side of the wall:
   …LLLUU RDRR…
   Now finish the level by crossing the gap and wrapping around the right edge.
   …RRRRRRRR DDL

9. Spoiler

   Weight: Gravity adds a twist to an old puzzle.

   Solution:

   Spoiler

   As before, start by wrapping yourself around near the apple.
   RRRRRU…
   If you try to leave the exit open, gravity traps you in the corner instead. The correct answer is
   …LURULLL… and then finish with
   …UUURRRRR

10. Spoiler

    Restraint: Good thing that hole in the floor is covered.

    Hints:

    Spoiler

    You can't eat the apple from the left, because your tail blocks your escape.

    So you must approach the apple from above, and then…

    Spoiler

    …and then continue to the left. This means that your tail must be on the right!

    Solution:

    Spoiler

    Enter the hole face down and immediately go right, then turn around and pick up the apple.
    RDDRRR ULDLL DLUUR…
    Going down here kills you. Instead, snake around with
    …ULURR… and then
    …RRUUUR.

11. Spoiler

    Movable: This level introduces push (gray) blocks.

    Solution:

    Spoiler

    Push the block from left to right until it's under the exit, and then climb up.
    DLDRRR URUU

12. Spoiler

    Long: That exit's really far out.

    Hint:

    Spoiler

    The apple is a trap. Use the push block to make it safe.

    Solution:

    Spoiler

    Go around the push block and put it in the hole:
    RRRURRD LLL…
    Grab the apple and climb upwards to reach the exit:
    …LUUUL URRRRRR

13. Spoiler

    Tall: That push block's really high up!

    Hint:

    Spoiler

    The apple is a trap. You're going to have to reach the push block without it.

    Solution:

    Spoiler

    Climb on the apple to reach and push the block.
    RRUUL UUL…
    Push the block in position and take the apple.
    …LLDRR RRUL…
…URRRRRU

14. Spoiler

    Deep: Those pits are really deep!

    Solution:

    Spoiler

    If you try pushing the block first, you get stuck. So the apple has to come first:
    RRRRDDLL…
    Now you can push the block and leave.
    …URRUUU RRRDDL

15. Spoiler

    Pusher: Bring the block to new places.

    Solution:

    Spoiler

    You can only move the block by going the long way around:
    RRRUU LUULL DDRR…
    Grab the apple and push the block further down:
    …RULL DDRRR…
    Now you can reach the exit.
    …RDD LLLL

16. Spoiler

    Double: Let's see how you deal with two blocks.

    Hint:

    Spoiler

    Having trouble pushing a block away from an edge? It helps to plan your moves ahead.

    Solution:

    Spoiler

    Bring the top block down:
    RURUU RRDL…
    Now you can put the bottom block in the hole:
    …LLDD RRRR…
    Turn around and move the block to get the apple.
    …RRULD LLLLLLL ULUU…
    Position yourself so you can push the block back.
    …RULLD RRRRR RRRRR RURUUU

17. Spoiler

    Hoard: This time, you need the blocks to make your descent.

    Hint:

    Spoiler

    You'll need to go around the top block to push it down, but that means you have to climb really high. Sound familiar?

    Solution

    Spoiler

    First, push the left block to the edge.
    ULDRR…
    This lets you climb onto the apple and around the top block. Push it down!
    …URURR URRD LL…
    Grab the apple and push the other block down.
    …DLLLDR…
    You're all ready to leave!
    …RDDLD RRRRRR

18. Spoiler

    Cramped: Can you get the blocks to stack?

    Hint:

    Spoiler

    You essentially have two paths to take in the pit, and the order that you do them matters.

    Solution:

    Spoiler

    The only way to avoid getting stuck is to push the right block first:
    RRUU RRDL…
    Then the left block.
    …LLLUR… and you're free to leave.
    …RUUU RRRRR DDL

19. Spoiler

    Sparse: There's almost nowhere to stand!

    Hints:

    Spoiler

    You can only get the apple from the top, but…

    Spoiler

    …that dooms you to fall. So don't do it!

    Solution

    Spoiler

    Cross over the apple to the other side where you can push the blocks.
    RRRRRU…
    Push a block, cross back to the left, push the other block, and leave.
    …RRRUL ULLDR URRRR

20. Spoiler

    Divider: A tricky level, even if the tricks are old.

    Hints:

    Spoiler

    You need both blocks in the bottom right, which means freeing both of them.

    The pit under the left ledge indicates that the left block is more difficult. Solve that one first.

    Spoiler

    You can't push two blocks at once. Don't let them touch horizontally.

    Solution:

    Spoiler

    You need to leave the apple so you can crawl around the left block.
    ULLLLL UUR UURRDL…
    Now you need to eat the apple and push the block right when it drops.
    …LLLURR ULUR…
    Rearrange yourself so you can push the block again:
    …ULLURR…
    But don't drop this block, because you need it to get the other block.
    …RRRRR URUUU LLDR…
    You can't push the top block first (or they'll get stuck). Push the bottom block.
    …RRDD LLUR…
    Push the blocks in and climb to the end.
    …RUULDDR RULLLUL LDRRRRR RUUUR

21. Spoiler

    Hurt: After 20 levels, we finally get spikes.

    Solution:

    Spoiler

    Pick up the apple, making sure you don't drop on spikes immediately afterward:
    RRUURR…
    The rest of your body will soon be unsupported, so put your head on the ground.
    …DRRR

22. Spoiler

    Hostile: There's less safe ground here than you'd like.

    Hint:

    Spoiler

    Remember from level 5 that you can only get this apple from the left or right. Which is correct?

    Solution:

    Spoiler

    Eat the apple from the left side.
    RRDD LDRR ULUUU…
    The spike prevents you from climbing the right ledge, so get there from the left ledge instead.
    …LURRR RRDDL

23. Spoiler

    One way: What must you do? What mustn't you?

    Hint:

    Spoiler

    You need that apple, and there's only one way to reach it.

    Solution:

    Spoiler

    Climb to the top right of the level.
    RURRUURRRUR…
    Then grab the apple from above.
    …ULDDD…
    And crawl your way to the end.
    …LULL UURRR URRDDR

24. Spoiler

    Smile: It's not that difficult.

    Solution:

    Spoiler

    The apple gives you a chance to move your tail away from those spikes.
    RRRD RULD…
    Go down and then up, and then?
    …DDLLUUU…
    Do it backwards.
    …LLURR DDDRRUUU…
    You know this part.
    …RURRD RDDL

25. Spoiler

    Tiny: A nice and short challenge.

    Hint:

    Spoiler

    Work backwards to figure out how to fall without failing.

    Solution:

    Spoiler

    The first few steps are forced:
    RUULUR…
    Trace out a tetris piece which fits over the spike.
    …URU RR

26. Spoiler

    Drop: The story of a block and three spikes.

    Hint:

    Spoiler

    Where does that block need to be?

    Solution:

    Spoiler

    Push the block over so it doesn't get trapped on this spike.
    UUR…
    Now you need to get the apple safely.
    …ULLUR UR…
    Send the block to the right spikes so you can leave.
    …RRRRR DDR

27. Spoiler

    Pyramid: Do you go up first, or down?

    Hint:

    Spoiler

    If you plot your half through the lower half of the level, you'll find that it's not passable yet. What do you need to do?

    Solution:

    Spoiler

    Climb up and push the block down towards the right.
    RUURUUR ULDDRR…
    Then push the block in the pit and work your way through.
    …RRDLL DDLL UUUL…
    Finish the level as usual.
    UUR RRRR URRDR

28. Spoiler

    Turnaround: Simple level with a clever twist.

    Solution:

    Spoiler

    Grab the apple and push the block as usual.
    RRRU LLUR…
    Going up eventually puts you in spikes. So avoid the block while you turn around on the right, and then the left.
    …RRRUL LLLDR…
    The rest is direct.
    …RRRUUURR

29. Spoiler

    Crossing: There's a long way to go.

    (Note: If you've skipped any levels, you should go back and finish them before this one.)

    Hint:

    Spoiler

    Where does the block go, and how do you get it there?

    Solution:

    Spoiler

    Climb to the top so you can push the block right.
    RUULL URRRR UURRU LLULL DR…
    And then push the block right again.
    …ULLL URRRR…
    Find a safe spot to crawl to the apple, and then you can finish.
    …UULLUU RRRRRRRD

30. Spoiler

    Tower: The final challenge of the game. This paradise of apples is also a purgatory of spikes!

    Hint:

    Spoiler

    The bottom two apples must be collected last.

    Solution:

    Spoiler

    Let the right block drop as you pick up the top two apples.
    RULLUUR…
    Adjust youself so you can pass to the left, leaving a space to push the other block right.
    …DRUUL DLLLUR…
    Pass over the stack to the right ledge, and make sure you rest firmly on it.
    …URRRDD…
    Then grab the last two apples by going around the bottom.
    …LDDLLUUL…
    Climb to the exit!
    …URURUUUUUUU

    Mash buttons on the end screen to escape this turn-based platformer hell.

Hint:

Solution: