This is such an awesome character to use! Cheers to yet another awesome OC mod!
Flare's moveset flows really well with each other, from being able to bounce off of enemies multiple times using the tail swipe, then land on ground and use the wheel rush, to being able to hover using the flamethrower.
The fire projectiles have great power and range, and the burst you get from using the wheel rush's up mechanic gives you even greater height.
I love the added bonus of Flare being completely immune to fire elements, unlike the Blaze mod that just makes her lose rings. Nothing about Flare's moveset feels overpowered either. Just a great character to control overall.
Where I get into problems is with his super form. Spoiler territory for anyone that hasn't played the mod already. Flare grows super tall, which admittedly looks awesome af, but then it's when you try to maneuver him is when problems start to show. With the increased hitbox, Flare can get stuck in certain parts of levels, mainly in tight spaces. Now, you could say that this is the level designers fault for having such corridors, and it could very well be that reason, but of course they didn't accommodate for characters with constantly changing hitboxes. This would suck for those that are using Vanilla SRB2 cause afaik there no key to turn off super mode. I'd recommend adding a command that allows people to change whether the hitbox grows whenever you turn super.
Also, a nitpick, but I'd also add a sprite for failing a trick using Xmod. The mod does take Xmod into consideration, but it's weird that a trick sprite wasn't added tho.
Other then the super form, again, really awesome OC mod. This is such a facelift from the older Flare. Can't wait to see what else you have in store.