I am currently working on a 3D adventure game, kind of like a Mario game. (I’m not gonna make anything Mario, I know I would get hunted by Nintendo lol) I am just make a game with aspects of adventure and story like that!
What aspects would YOU, being the player, like to see in this game?
I’m assuming your game will be something like a platformer/action typed game, which I really enjoy
I’d love to see some unique mechanics that differentiates your game from any other mario-like games and also some challenging boss fights 
I would like seeing it like Mario but transformed into more of a Roblox game yet still having mechanics similar to Mario
What exact mechanics? Are you talking like physical game things like the high jumps and power ups, or more the games physical style and story?
I shall make the greatest boss fight ever!
I mean the typical Mario traits like jumping on things to kill them and the ? Blocks where you hit your head on them lol. But then in a 3D version which uses aspects of Mario and puts it into a Roblox game