Good luck for the mini game BTW...
Honestly, Kirara's got the only mini-game that isn't pure hell. By my second time doing it, I figured out a route that lets you complete it 100% of the time without ever stopping to wait for a sentry to move. Just keep running and you'll reach the goal in less than 10 seconds. Its basically either free money, free buff, or free 800 affection for Kirara, making her by far the easiest to max out affection for.
The only way to do Ichika's is to use the crane as a battering ram to push shit into the hole. The claw's never picking that shit up. I got lucky and the first roulette prize I achieved gave me the costume and I immediately noped out of it.
Hikari's is actually the spawn of satan and I don't understand how they could have made it that bad unless they just never tested it once. I got lucky again and got the costume on the first and only time I cleared it.
I didn't even attempt the 4th one because by the time I finished the previous 3, I was just done with that shit. I was expecting almost nothing and even then, the DLC was still really disappointing.