Cheat Engine

[CheatCat]

In the game Rayman 3 you can different powers, but only one at the time.
For example there is a power that make the player to fly and one that give ability to shoot rockets.
There is only one address that give different powers by changing values, I have scanned but I can't make the player fly if he don't have the fly power.
Maybe I can use code injections to make the player able to fly and shoot rockets at the same time? But I have no idea how to do a code injection, can anybody help me, please?