--Code--
cold soup
MegaDood
Marioman2007
MrNameless
MrDoubleA
Chipss
Enjl
Cpt.Monochrome
and more (y'know I can't name them all)
--Graphics (I had to shorten one by a graphic pack)--
cold soup
Everyone who has worked on the Online GFX pack
AirSheep
FNC2002
S.Koopa
People from the MFGG.net (its not a pack or person, but credit is credit)
Some tiny edits by me
and more
--Misc--
YoshiSuperStar - Too Bad Test used in my simple death screen (I did edit it so that it looks a bit different)
Nintendo - Music and Familiar Characters
SEGA - Mostly Familiar Characters and Items
NewerSMBWii - Music
Rimea - Music (just the boss music, plus, I didn't steal, I found it online legally)
Chipss - His video titled "This Level Editor Puts Mario Maker 2 to Shame" inspired me to use this Level Editor!
and more