Wesker injected himself with what most people call the "Wesker-Virus" because nobody really knows what he is currently infected with.
Lots of people also refer to him as a Tyrant, as you can see when he takes of his sunglasses, his red eyes are revealed as an effect from the unknown virus.
I wouldn't really say he has
silly powers, but rather more something like he has a great strength ability.
Chances are that he'll be returning in Resident Evil 4,
possibly with Chris Redfield.
But there are some unexplained interesting facts about Wesker and his relation with the HCF and epilogue of Resident Evil: Outbreak.
Quote
Yes, we'll be dropping 2 for each beginning with sample T-4, the rest will follow at 15 minute intervals.
This was taken from the ending of Resident Evil: Outbreak from one of the men that are in the observation towers built upon the smoking ruins of Raccoon City. Or What's left of it.
The next quote is taken from the Resident Evil: Remake.
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2. Collect two embryos of each mutated specimens as samples, excluding the Tyrant. Dispose of the Tyrant.
That was to Albert Wesker, and all I was thinking was that the organization that is making the supposed breeding grounds in Raccoon City is the HCF, and the reason of Wesker to collect the embryo's was to make a sort of Noah's arc effect where Bio-Organic Weapons will be bred.