Kero Blaster

You are Kerotan, a frog who works for Cat & Frog, a teleporter company. But lately your boss seems to be very stressed — a strange plague of black monsters seems to be infecting the company's equipment, and it is your job to fix them.

The main game has about half a dozen areas, each consisting of many screens. If you lose a life, you have to restart the screen; if you lose all your lives, you must restart the whole area. However, you always keep your coins, equipment and upgrades, even if you die.