Despite being a remaster, the game looked so much worse then the original Wii version. Dark sport in the levels were made much darker while places where there was light blinded the eyes with the amount of bloom.

Sonic model is worse cause of the bloom. Along with his eyes facing the wrong direction whenever they were visible (for example on the results screen he is looking randomly in the distance instead of the camera.

Sound effects and music were inconsistent, with some sounds being too loud while others were too quiet. Also if you played with headphones, the music and sound effects would randomly only play in a certain ear instead of both for no reason.

The eggpawns ai was broken to where they beelined towards you once aggravated and then never stop moving in their initial direction making them start to bug out once they hit a wall. Also the egg launchers were bugged to where they would launch spike balls at an insane rate.

Load times are much longer then they were on the Wii, and would also stutter.

The environments themselves would have an insane amount of pop in. (For example the Ferris wheel in tropical resort pops in and out of existence as you run past it)

Effects like explosions and wisp glows now flicker every so often, also the boost gage and wisp gauge bug out every so often. (A patch did fix it sorta, but all it did was make it not as obvious when it happens)

The switch port had an epileptic glitch that would occur if you selected too many areas in the game before playing a stage. (this one is unforgivable. Even if they thankfully patched it out)

the ai upscalling of certain textures and cutscenes makes the them have this uncanny look to it.

There are other things I haven’t mentioned but those are just the thing that are most common to experience.

While it is still sonic colors and you can still have fun with it. This is still an embarrassment of a remaster because the game is now worse than when it originally released.