Eels, phonic substitutions, time-traveling groundhogs, and a game that lets you beat up Kirby-like avatars that represent people from around the world. Let's all join hands and sing a song of — OH MY OMELETS THE EEL IS EATING ME!!!
Phun - (Mac/Windows/Linux, 2-7MB, free) - You've seen this physics-based playground before, but now it's available for MacOS X! Create scenes using a simple set of tools (you can even add water!), then unleash your creation and see what chaos ensues. It's a cross between a World of Sand-style toy and Armadillo Run, and it really is as entertaining as the name implies.
Teeworlds (Mac/Linux/Windows, ~4MB, free) - An online multiplayer game of Worms-style fighting! Hoorah! Using simple FPS controls, this colorful 2D brawler puts you in control of customizable characters who pick up weapons and beat the squeals out of players from around the world. Because this game is open source, the level of customization is high, and the matches are quick, often frantic, and loads of fun.
Choke on my Groundhog, YOU !@#$% ROBOTS - From Kloonigames comes another experimental work, this one focusing on groundhogs, robots, and a replay feature similar to the theme from our 3rd Casual Gameplay Design Competition. You and your time-traveling groundhog sidekick (you read that right!) must eliminate every robot you can. Get hit, tap the [spacebar], and you begin again, the ghost of your pal returning to blast foes while you do the same.
Avoid the Evil Space Eel (Windows, 7MB, free) - A short game made by Nifflas, the inimitable author of all things Knytt, entered into the No More Sweden friendly competition. Fly your ship with the mouse and avoid the oncoming blocks as well as the ever-chomping eel. Use the [A] and [S] keys to play the drums along with the background beat for an extra bonus.
Strong Bad's Cool Game for Attractive People (Windows, 69MB, demo) - From the same studio that brought us the superb Sam & Max adventures comes another episodic adventure series starring the e-mail answering, Trogdor inventing Strong Bad, "hero" from the animated internet cartoon Homestar Runner. The game captures the signature humor remarkably well, and it's strangely fun to be able to play the boxing-glove-clad character after all these years. The game is also available for WiiWare.