If you want a big advantage. Kill the boss on lvl30 and then let your base be destroyed. You will get a quick 6k. Easy upgrades from there on out. Can max everything very quickly.
I keep getting spikes at random intervals. This is annoying as it messes up the timing of your jumps and of the overall game. If this is a known issue, Please attend to it. All in all 4/5
hahahah thank you for the suggestion! glad you liked it.