Area 1-2 has Kick Bomb Area 2-4 has Time Bomb/Remote Control Bomb Area 3-4 has Walk through Wall Upgrade

U just want to rush to get the crystals and ignore enemies as much as possible.

the Green Kangaroo can dash very quickly, which can be extremely helpful when collecting coins.

When too many enemies are on a stage the game lags insanely hard, but still just rush to destroy the crystals over anything else.