From the Mega Man series, it's Roll using Hard Knuckle from Mega Man 3! I've been playing through the series on stream recently but with the Roll-chan hacks by Zynk because, well, I like Roll. My main observation of Mega Man 3 is that Hard Knuckle is the best weapon and I will hear no talk to the contrary. I'm gonna miss it in the other Mega Man games... Anyway, this is based on her Mega Man 8 appearance with two palettes- one normal, one based on her palette when using the Hard Knuckle in the hack.

Based on her costume from Tekken 5, it's Anna Williams, sister of Nina Williams! She has a rocket launcher in some games, but I didn't add that here, drawing the dress was enough for me, thank you! The 'clone characters' from the original Tekken (and later games too, like Christie, even if she was a replacement for Eddie and... OK I'm off topic) have it rough, they haven't always made it to sequels. She'll be DLC for Tekken 8 though, right? Right??

From Sonic the Fighters (albeit decades after its actual release), it's Honey the Cat! Based on the character of the same name from Fighting Vipers, she wasn't playable in the original arcade game but present in the game's code, later finished up for inclusion in the Xbox 360 / Playstation 3 port and the version included in Lost Judgment as an arcade game. She even showed up in the Archie comics! Her design's really cute, although I've taken a few liberties here, taking her fur colour from the arcade game rather than the more yellow Archie version and adding elements from the original Honey. Cute, huh?

From Puyo Puyo Sun, it's Witch! Unfortunately, her traditional witch garb is not a great pick for the warm summer months, especially if Satan is making the sun bigger to guarantee tropical weather. Poor little thing, I hope she's keeping hydrated! Anyway this is basically what I turn into when the weather's a little too hot.