If you are going yo update your mod, I would like you to implement this:
King Bob-Omb: ar the beggining of the battle, when King Bob-Omb stomps the ground, he throws waves of lightning like Bowser's and if you are very close ti him, deals 2 damage to you.
Whomp: when you defeat him, say ay the end "Dang It!" (now that think about it, I really don't know if it's good)
Wiggler: she can traje more hits (first phase = 1 hit, second phase = 2 hits and third phase [Mad Wiggler] = 3 hits)
Bowser 3: he has the ability to teleport in the same way as the Big Boos (even throwing fire)
Toad 3: the places where the Toads of the levels are different from those of the penguin, something like this:
BOB: Toad=no change, penguin=on the floating island
WF: Toad=no change, penguin=on the floating islands
JRB: Toad=in the "secret" cave, penguin=no change
CCM: Toad=no change, penguin=next to the blue coins
HMC: Toad=no change, penguin=next to it from the entrance to the metal lake
LLL: Toad=no change, penguin=on top of the volcano
SSL: Toad=next to the oasis, penguin=no change
DDD: Toad=no change, penguin=next to the red coin behind bars (beyond the blue coins)
SL: Toad=next to the star on the box, penguin=no change
WDW: Toad=next to the canon, penguin=no change
TTM: (I never found any of them) Toad=in the mushroom (the one without the star) penguin=at the end of the slide
THI: Toad=no change, penguin=in the Wiggler's cave
TTC: Toad=below the fifth star, penguin=no change
RR: Toad=no change, penguin=next to the star of the box
And change the Toad's text when he gives it to you
Mips star 2: make the message appear sooner
Eel: I think it needs to be improved because it is very iconic, maybe it will be faster on the first star and return to the ship sooner, and in star 2 maybe the same (or even make it a new boss to get the star "Can the eel exit to play?")
Chain Chomp: I also think it's very iconic, and I think making it faster and that can stretch more would be good changes
Cloud (I don't know if it has an official name) : I really don't know what could be improved, but it is unique and only appears in one level, maybe being the same as the Snowman's Head would be enough
Bob-Omb quiz: more questions like:
What is the course 13 in Super Mario 64?
Tall Tall Mountain
Wet Dry World
Tiny Huge Island
Snowman's Land
In the 16 Stars category, why is get 15 stars before Bowser 2?
Open the Star Door
Get to the basement
Catch Mips
Because...yes
How many Toads are there in Peach's Castle?
5
6
7
8
Although it's not really necessary
Mother penguin: just like Wiggler, who can take more hits
Mad Piano: at the beggining a text appears, something like:
The piano is in danger...
The piano needs to awaken...
Calling the dark souls...
The Dark Stars...
It will be preserved...
FOREVER!!
May the battle be doing the same but Mad Piano is very aggressive, like throwing musical notes and stomping on the floor (basically making him a boss) and at the end says something like:
Wait... the piano...
WAS DESTROYED!?
maybe it's time...
hand over the powerful...
Dark Star...
Let's go back...
to the quiet...
Grand Dark Star: I would like the eyes to be like the Ztars from Mario Party DS, also that can summon dark enemies or even dark bosses to attack (such as goombas, boos or bully, in the case of dark bosses they could be Big Boo, Bully, Eyerock [only one of them] or Chill Chilly) that last up to 10 seconds, also improve the transformation and destruction animation.
Those are all the ideas I have in case you update your mod!