Underground Astronaut

Control astronauts in underground space to collect crystals, you will need to use ejectors to fly to avoid alien creatures and sharp traps, please be careful to avoid death. And do check your air meter left amount at the up left conner, if it becomes zero, you'll die, cuz the astronaut still need air while exploring. enjoy your adventure！

(p.s. use “←”，“→”，“↑” to move and jump; click esc to restart game)