This was such an awesome idea. Having the sprint show the background screen was already cool, but making it connect to the shrink/memory theme was really clever. Super inventive use of the theme.
The game was intense too. The regular bullet patterns already felt fun, but the boss phase was diabolical. It felt like the game knew exactly how far to push the chaos.
Also, I play on multiple monitors, and that centipede-like enemy actually traveled over to my other monitor haha. That was really cool. I love when a jam game surprises me like this, and this one definitely did.