As someone who is to this day convinced you can time the slot machines in Pokemon RBY, this game speaks to me. Most of the gameplay mechanics are easy to intuit, and the ones that aren't have a convenient tooltip within reach. The minigames also add a delightful bit of variety, and the art is endearing.
As for suggestions and criticisms: the early game can be a bit... tedious. Even with good timing the reels can still just screw you and early on it can feel like you're struggling to make progress in a fight at times. Also anything you can do to improve the visual clarity of the symbols on the reels would only be appreciated. After about an hour and a half of play I started to get a headache from squinting at the reels.
Total playtime: roughly 2 hours. The leprechaun remains unslain because of eye strain.