It sounds like it should be the name of a top-secret Cold War superweapon, or perhaps a very specialized brand of bleach, but Red Remover has nothing to do with either Soviets or stains. Instead, we encounter a sociopsychological inquiry into the implications of the emotional spectrum on the temporal-spatial behavior of Euclidean polygons. Or more simply: sad shapes are not welcome and must be exiled far, far away. Come to think of it, maybe it has to do with the Soviets after all...
Regardless, this latest offering from Gaz (Super Stacker, Particle Blaster), charges you with the task of removing all of the melancholy red blocks (including fixed blocks!) in a level while keeping all the exuberant greens. If the blocks are light red, no problem, just click once and they're history! However, blocks of a deeper crimson hue are not fooled by your clever mouse-wrangling. Dispense with these using your double-edged sword of momentum and gravity. Yes, there is gravity. Oh, is there ever gravity!
On the surface, Red Remover seems like a younger sibling to Totem Destroyer and Redstar Fall trying to copy what its big brother and sister have already perfected. Then, like a youngest child, it blossoms suddenly into something altogether different. For you see, gravity isn't quite the constant that early levels might make you think. Each shape has its own orientation, indicated by the direction its face, er, ...faces. It's a little bit disorienting at first to have blocks fall in four different directions, but it becomes quite natural after a few levels, and Gaz puts this twist to good use in his level designs, which are for the most part solid. Some require precise timing, while others are more sequentially-based, but for the most part they do not rely on chaotic motion and lucky bounces ‒ something that cannot always be said about previous tumbledrop games. There is a logical solution for each one. As a result, the 40 levels go by faster than you might expect if you've played those previous games.
There are some cheap attempts to add replay value by introducing pars halfway through (meaning you only get to see how well you did on the first 20 levels after the fact) and by offering a "bonus mode" where you get to replay the levels with a totally unfair handicap. By beating every level in par and in bonus mode, you gain access to 5 bonus levels, a mere crumb for your efforts. Luckily, Gaz has also included a level editor, so you can make your own levels and share them with other Red Remover fans.
Aside from the brevity and a one-step-too-many level reset procedure, there's little to find fault with in Red Remover. So go ahead, wear that spiffy white tux to the Leningrad Spaghetti and Shiraz Festival, 'cause you're prepared for any foreseeable disaster.