Cube Mining 2097

Made for GMTK jam 2017, using music by Ray Rude from freemusicarchive.org.
You're tasked with cutting through the precious cubular resources beneath The_Mining_Base on A_Planet-892847x3, use your miner orb to lock to cubes, mine them and send them upwards to get precious wealth!
Also there may be enemy Droidsz which are impenetrable except for their doggedness to slam into these cubes, but that's nothing to worry about!
A/DMove when in the air, falling onto a cube will Lock onto it
SpaceJump when locked onto a cube
Mouse Position
AimMouse Click
Shoot rubble when locked onto a cube,
Shoot at the yellow belt to get score and extend the belt,
Rubble will create new cubes if it falls onto one, or will damage cubes if shot at one