As a weapon(and if you include a combo system) I think these would be really nice. A more personal, Evasive, assassin type(claws) and brawler(knuckles) that should be great for the game and PvP.
PvP should be a nice feature to add in this game (always IMO) and maybe some arenas and a survival type arena(think hunger games) to add to this game would be really cool. A world only dedicated to these kind of arenas. Also a Gladiators arena with spectator seats and a shouter(?) would be really nice.
Edit: Sorry if this had been already mentioned. The time i published this i was on the phone --’ next time illbe sure to search before i post anything
Ahaha like your rebelious a55. Those feet weapon would be cool but im thinking: when we are fighting with hands or feet and you do a rotating move, the caneta should move 360degrees too