Andromium

Andromium is the name of a dangerous radioactive metal, that explodes when it touches anything for a short period. Armed with no weapons, and a limited shield, you must team up with a friend to safely deliver your combustible cargo to a research lab several lightyears away. Not only must you avoid all the dangerous obstacles scattered throughout space, but you must juggle the Andromium between your ship and your partner’s, to ensure the Andromium remains cool and stable. Watch out for space bees, grinding gears, enemy ships, electric orbs, alien tongues, clock pendulums, blue fireballs, balance boards and giant broccoli, but for heaven’s sake don’t lose the Andromium when it reaches your side of the screen!

It takes about 12 hours to complete this game.
Difficulty of this game: Just Right