About style: Lighthearted and cartoony, but not overly childish. Not on the side of Kirby cute, but still wacky fun characters and level design. I tried another, larger, sprite to see what he would look like with eyes and I have to say I like it better.
I?ll go ahead and share some ideas I have for the gameplay/genre and such. First of all, I want Mannon to shoot various kinds of projectiles, not just plain cannonballs. So far I think my ideas are best portrayed through a top down RPG.
On the topic of enemies
The player needs enemies in order to be challenged, kill them to get loot, progress, etc. I think the enemies should be shot out of Mannon?s cannon head. There would of course be some mysterious curse or plot device as to why this happens. Example ? Mannon is walking along through the level and he gets to an invisible trigger area that makes him fire enemies. Three little goons boom out of his face and the game enters a Battle Mode. The player would then fire different types of cannonball ammo at the enemies until the enemy?s HP or the player?s HP reaches zero. There would be a battle menu like in FF games, but kind of different. I think this could work, but I need opinions on it.