Straight to the point: Last Stand 7 is 1 lives, bosses with 70 base HP every third wave, playable in your browser right now. It is tuned for quick runs, honest difficulty, and controls that make sense the first time you touch them.
Drag anywhere to fly - the ship floats above your finger so you can actually see - and the guns fire on their own. Your job is positioning: thread the bullet patterns, collect the shield and homing-missile drops, and survive waves that keep escalating. Here you get 1 lives, bosses with 70 base HP every third wave.
It suits anyone with a queue to wait in or a kettle to watch: students between classes, commuters, parents stealing ten quiet minutes. There is no meta-progression to lose and nothing to catch up on - a week away costs you nothing but a little sharpness.