Performance improvements, balance, and bugfixes

Robot Resistors

Robot Resistors is an irreverent robot-themed auto-shooter with a 16-bit style. Each of the over 100 enemies you face is distinct, with unique abilities and hand-pixeled animations. A huge roster of playable characters, tons of weapons, and five wildly different procedurally generated stages await!

Mini-patch mainly addressing a performance hit that some users were experiencing in the Caverns after a recent update. We're also doing some tuning on the blue boss encounter in the Caverns, it should be a bit less oppressive to when tackled early.