Crunch Time

Overview
In Crunch Time you have infinite lives and a 3 minute time limit.

Originally this mode didn't include any ambushes or bosses but these were later added during a free update.

Tactics

 * Increase your level as quickly as possible building you Score Multiplier and causing higher scoring enemies to appear.
 * Try not to die. Each time you die the spawn rate decreases and the arena is cleared out costing you time.
 * If you are doing very well then more than one Cube will spawn towards the end of the round.
 * Killing the boss cubes during a big combo will maximize the points they are worth.