Cavern Runner
Back in the days prehistoric, I saved up all of my monies as a 14 year old and bought a ZX Spectrum 81 second-hande from a neighbour. One game came on one cassette tape, you could now fit about 20,000 of them a cheap handheld device from Temu, or your phone.
A little browser game in the spirit of the ZX Spectrum. Collect every key in the cavern, dodge the nasties, and get to the door before your air runs out. Ten caverns, three lstarting ives, and beeper music that speeds up as the air gets low. Arrow keys and space to play, or tap the buttons on a phone. Nothing to install, and no five minutes of tape loading.
ARROWS or A/D MOVE · SPACE JUMP · P PAUSE · M MUTE