Claus is back, in an updated, finalized hack of Mother 3! In this hack, the roles of main characters Lucas and Claus are swapped, making Claus into the main protagonist, which greatly changes the story due to Claus’s drastically different personality compared to Lucas. Much of the text and story is altered to better showcase Claus’s personality and thoughts, as well as how others react to him. There are 3 different gameplay versions, one normal version for those who want to play only for the story, one moveswap version that makes Claus the offensive PSI user and KUmatora the defensive/healer, and a combined PSI that makes Claus and Kumatora’s PSI movesets like Paula and Poo from Mother 2, where they both share good amounts of offensive and defensive PSI. All versions have Claus’s instrument sounds changed too to be his actual instrument sounds, and not Lucas’s.
This new update fixes an error where 2 areas of the late game did not have any altered dialogue (those being the Toilet Dungeon and Porky’s Minigames), as well as polishes up dialogue across the game and adds in new tidbits into areas that weren’t there before. You’ll have to find them for yourself.
On top of that, the King Porky Statue boss fight has been altered to be winnable by normal means as he now has much more manageable HP and slightly nerfed stats, but he’s still a big challenge (and as such, you can no longer one shot the boss with the New Year’s Eve bomb). However, as a result the rewards for beating him are much greater, as you can get Lucas or Kumatora’s Ultimate Weapons from him, as well as making the EXP for beating him slightly greater. If you already happen to have one of these Ultimate weapons, you can now sell them for a lot of DP as compensation as well.
This is a hack by the fans, for the fans, as a fresh new way to experience and enjoy the story of Mother 3.

https://www.romhacking.net/hacks/4434/