The guard turns to face you again and smiles. "Yes, all winners get to go again for free, but since you did so well, you should get something extra too!"
Still somewhat lost to the pleasure you just inflicted on yourself, you take a bit to understand exactly what she said, and by the time you want to ask for more details, she continues. "I don't remember what exactly it was, since our previous record hasn't been beaten in quite a while, but the guys up in front should get you sorted out, come along!"
The thought of going back to the customer entrance with ripped pants and your new tits hanging out of your freshly destroyed clothes quickly brings you back to reality, and you ask for a moment to cover yourself, but it turns out to be harder than expected - while your butt is a bit too big for your pants now, you can still use their remains as an improvised loincloth, and your tail will have to do the rest. However, while your breasts are decently perky, they are also not only ridiculously large, but they don't exactly stay in place without support like your genitals either, so after several failed experiments and almost ripping your shirt apart on accident, you resign yourself to wearing it backwards so it at least hangs down slightly past your nipples, leaving everything below exposed.
Back at the entrance, you think you can see the group that ambushed you getting escorted off the premises, but you're not quite sure since they all were turned back into humans again. More importantly though, your guard leads you to the people manning the counter, specifically to a rather bored-looking man, who first stares at you for a second, but he quickly catches himself and looks to the guard next to you.
"So, she's getting more than just a free entry to the next round or what?"
"Yeah, she performed really well - blew the previous record out of the water, in fact - also," the guard lowers her voice. "She's the one that got targeted by the group my colleagues just expelled, so try to be a bit more professional."
The guy looks at you again, "Yeah, checks out... Alright then, let's get you your reward for kicking everyone's ass - follow me please!"
He gets up and marches towards a door marked "Employees only" and you follow, leaving the guard behind.
Behind the door is a rather tight corridor, but after a few turns you get to a door labeled "Equipment and Tech", which he steps through.
As you are about to enter, the worker glances back at you and gives you a serious look, "Don't touch anything unless I tell you to, alright? It shouldn't hurt you or anything, but I think you've already had enough complications for today."
You nod and continue past him. Inside, there's a decently big room with storage racks crammed full with all kinds of technological gadgets and related things, from obvious spares like another massive display similar to the one you've seen your high score on and a whole rat's nest of loose extension cords and other cables, to some kludged together mess of metal and wires you couldn't even begin to guess the purpose of.
More importantly, there are several items just lying around next to the shelves, and quite a few power cords running along the floor, so you ignore the sights for now and focus on not tripping in spite of your newly acquired snout and breasts being less than helpful for figuring out what's right in front of you.
A little further inside, the shelves open up into a similarly chaotic workspace and you turn around to see the worker searching for something while muttering to himself, "Now, where did they put that thing - probably piled everything else on top of it, not like we use it that much... Let's hope it didn't get fucked, don't wanna look for spare parts as we- There you are!"
With a triumphant shout, he pulls out an object that looks like a bigger version of the guns you just played Laser Tag with, except with several extra pieces of electronics tacked on, and quite a few extra wires.
The guy proceeds to grab a few tools, follows you into the workspace and starts to explain while fiddling about with the gun, seemingly checking its functions "See this beauty here? It's a better version of the guns we use in the arena, but it's a bit of a work in progress - damn thing keeps falling apart if you don't give it enough attention. Anyway, your prize is, instead of getting the pick of being turned back after the game or continuing as you are, you get to pick and choose what you want to look like from now on. Usually, we just tell you about it and you get to play your next match instead of waiting for someone to give it a checkup, but I can think of two arguments - " he gives you a lewd smirk, "for getting that part of your rewards first. No worries though, you still can get yourself reset to whatever you pick after every game, so have fun getting your DNA scrambled in the arena until you've had your fill."
He works on the device for a bit longer, giving you ample time to think about how you'd want to change yourself before he runs a few tests and turns to you, "Alright, what'll it be, princess?"