Reach The Core

Two aliens, robots travel through space. Suddenly run out of energy to power their spaceship. Fortunately there is a nearby planet plasma, which is the energy source of the ship. But the plasma is only available in the planet's core. Help them to reach the core drill and recover some plasma for spacecraft. Upgrade helmet, drill head, battery, engine, turbo, and the slot machine to make it better and more powerful. Try to earn as many achievements as you can. Have fun!