Ball Or Nothing

Ball Or Nothing is a 2D platformer with a clean objective — reach the blue door at the end of each level — and two abilities that make getting there interesting. You can dash over gaps and you can blast through walls, and neither is unlimited: both are active only for a limited time before needing to recharge. That turns each level into a question of when to spend an ability rather than whether to, because using the dash on a gap you could have jumped means not having it for the one you cannot. Between you and the door are rotating blades and spikes, which are unforgiving enough to make the timing of a recharge genuinely matter.