This Sonic 3 A.I.R mod aims to make Sonic 3&K's base game bosses a little more difficult, while adding new bosses to spice it up a bit.
Each boss (minus a few) has been made more difficult, whether that be having different attack patterns, more ways of attacking Sonic and company, or being slightly faster and meaner than their original counterparts, so you definitely want to watch out!
There are three new bosses that have been replaced with new ones. These new bosses can be found in Lava Reef Act 1 at the beginning of the level, Lava Reef Act 3 (or the Lava Reef boss act), and in Death Egg Act 2. They are the Lava Drill, Hotter Mobile (it's my first custom boss ever, so it's rough around the edges), and the DD Wrecker from Sonic Mania respectively. These can be toggled off if you'd like. I did plan to make more custom bosses, but unfortunately there wasn't enough time to fully develop them.
Included in the mod are different settings to configure the bosses. Think a boss is too hard or too easy? Want more or less HP for a boss? Don't like the harder version of a boss? This mod's got you covered. Also included is the option to disable Sonic's Insta-Shield to make the bosses a little more difficult, and is enabled by default. You should disable this if you're experiencing problems though. Also included are some options to make some of the bosses harder if you'd like to, as I couldn't decide whether or not they should be this difficult, so I am giving you the choice!
There are a few bosses that have been excluded from the rest as mentioned way back at the start. These include the first and second Sky Sanctuary Mecha Sonic bosses, and the Death Egg Act 1 boss. This is because of the first two being throwback bosses to earlier Sonic games, and Red-Eye (the Death Egg Act 1 boss) already being kind of difficult.
One last thing, this mod should be able to be put above all other mods without causing problems, but make sure for mods like Agent Stone in Sonic 3 A.I.R (basically other boss-related mods,) that this mod should be put below or above those (depending on which one works best) or be disabled entirely (either one, this mod or another boss-related mod) to ensure compatibility. Sorry for not being more specific, I unfortunately didn't really have the chance to test other boss mods with this one.
With that said, I hope you have fun with these harder bosses, and good luck!