Red Ball

A platformer where you are a ball, and that changes everything about how the levels work. There is no stopping on a ledge and no precise footing; you roll, momentum carries, and a jump is only as good as the speed you brought into it — so the levels are designed around acceleration and braking distance rather than around footholds. That physical honesty is what makes it more than a mascot platformer. Slopes are genuinely useful, heavy objects can be pushed with enough speed, and several puzzles are solved by arriving fast rather than by arriving accurately. Hazards are static and visible, so the difficulty is in the approach rather than in surprises, and the levels that take longest are the ones where the run-up is somewhere awkward. The progression is gentle and the presentation is cheerful, which makes it suitable for younger players while the momentum puzzles keep it interesting for anyone. Levels are a couple of minutes, checkpoints are reasonable, and there are enough of them to last several sittings. It plays with three inputs on a keyboard or touchscreen and runs on anything. The series has been around long enough to have refined its level design, and that shows in the pacing: each new mechanic gets a gentle level to itself before appearing in a harder arrangement, so nothing arrives unexplained.