Tetra Tanks

You have four tanks: 

Topaz: Double the speed.

Sapphire: Double the jump power.

Ruby: Double the turret damage.

Emerald: Double the health.

Combine their strengths to jump platforms and survive enemy attacks! Separate them to hold buttons to open doors and turn off death zones!

Test buttons and strategize which tanks to send where as you try and clear the level as quickly as possible!