Really enjoyed this! Stuck around to survive the full time, the first few minutes had me yelling for my life being chased by boxes, felt like playing fun flash games back in the day!
Could totally see this develop further with more enemies and upgrades - one I noticed was you'd get offered projectile upgrades you already had and I'm not sure anything happens if you take them, maybe it made them stronger? I also took electric at the start of the game but it didn't seem to appear until i took it again - but nonetheless it was a fun time and I enjoyed it! Cool truck menu scene art too :)