upgrade stats to make your green hexagon better upgrade rarities: grey-common blue-common purple-epic yellow-legendary
normal enemies:red/1 hit to kill bosses:purple/15-3 hits to kill (based on bullet damage) bosses will not spawn until 90 seconds in it costs $465 to max all upgrades (may be $475, not 100% sure) also, bullet damage III and hp boost cannot be maxed, they always cost the same and will never be max so you can upgrade them forever
