[quote=@Retired]
<Snipped quote by Nib>

All competitors would be put in whatever type of game would provide the most entertainment. It could be different every single time. This is an in-universe explanation so that way you as players can decide on whether or not you want your character to have been murdering people. That's not something I'm going to force on anyone. If accepted, we will talk privately to come up with the details for what your specific challenges were. 

Prior to the start of this RP, right before their escape, every accepted character will have been brought to the usual changing room, though this time as a group all seeing one another for the first time. There they would be told they were all to compete against one another to the death, and only one would survive. So, if your character had never competed in the gladiator arena before, this would have been their first experience with that. But they escaped before they fight occurred. 
[/quote]

That helps a lot. Thank you. With that info, I think Pete might have been put in the death puzzle games and as time went on, maybe a few games before the escape, started to use the symbiote attached to him to help him get through the challenges better.