Update: I was unfortunately not aware of Shamus Young's severe criticism of Fallout 3 available here to link in the original piece and I regret that. It dovetails rather nicely with what I've written and it's much better executed than my piece. I strongly recommend anyone...
Swipe upward when you jump for a jump boost.
'My Robots' section on the main menu has all the info on enemy robot you may need.
Watch out when using Tuna and his power-ups as they can be the opposite of what you need at that moment.