Stumbled upon a bug today. I've leveled Clover today up to level 48, which means her Bonus opponent cash is now +245%, which means that common cars now are more valuable than bosses. The thing I noticed, though, is after beating a boss, I get a new reward for common cars, say, 1.47 ii. Then I get to the boss. The reward for the boss is 1.67 ii. I fil the boss, and now reward for the common cars is 5.07 ii, which is 345% of 1.47 ii. It seems that Clover +245% bonus only starts working after failing the boss.