Mother 3.
Yup.
1. You better watch out, he knows about timed hits!
Mother 3 features a timed hits system where by following the beat of the battle music you can get extra damage from your physicals.
2. Why is that regen spell so expensive and gained so late!?!...Ohhhhhhh.
One of Lucas's latest spells is called Refresh which gives the entire party 10% regen for 20 PP. This may not seem like much but with Mother 3's rolling hp this is surprisingly effective.
Other clues
3. You don't want to eat the mushrooms.
4. HAPPY NEW YEAR!!!! 99999999