[quote=@Kafka Komedy]
Scott Pilgrim?!?! Holy crap, that's awesome! One has to wonder how he was keeping up with everyone else when all he had was super-strength and a sword. 
[/quote]

If I recalled the guy made the power a subconscious 'level up' where he got stronger and more powerful.  Plus he could pick up on martial arts and such.  Along with other such things like at one point he quickly learns how to fly the helicarrier manually to keep it from crashing.  "This is your captain Scott Pilgrim speaking, on your right you can see us narrowly avoiding disaster, and also we're out of peanuts."