I'm too tired to think deeply here, so out of the thousands of apps I've hoarded I'll just list a couple that are currently on my phone.
Beat Hazard Ultra (radio mode, 4 minutes)
Monsters Ate My Condo
Catball (a really bizarre game; you're an inflatable, gravity defying ball of kitty that must eat the whole game-world)
Pinball Ride Unlimited (burst mode)