The idea is cute and very clever. The execution is sometimes buggy, where the clickable controls don't really work, and the game gets stuck.
However, the chomps are not really well implemented, they are not required to land on any box nor to be non-overlapping to count, so spamming Space+G while on the top left corner is a viable speedrunning strategy.
The concept is amazing and funny, the mechanics need some time to get ironed out. Also what happens if the debt is payed after the first week? The game seems to not notice this. Or the grind just never stops for cats?