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Is there any feasible way to do the following in a firered romhacks:
1. Moves that have stab for one type and hit with another type. Ex. Spooky Howl which is STAB for normal types but deals ghost damage.
2. Happiness battle effects, similar to amie friendship. Low happens decreases accuracy, and high happiness increases crit chance.
3. Hm actions that utilize pokedex stats rather than being in the movepool. Any Pokemon under a certain height are small enough to go in small holes to retrieve items or unlock doors. Fighting type pokemon can break rocks.
4. A new weather effect move called Moonlit Night and some abilities and moves to go with it.
5. Scenarios that increase or decrease happiness based on pokemon's nature and users choice. Ex. Npc want to pet your lead pokemon. Timid, bashful, etc pokemon decreases happiness if choose yes but jolly, brave, etc decrease if say no.