You misunderstand the name of Fruity Loops. That's technically not its name anymore, because people use it for non dance music all the time so it's called FL Studio. The name fruity loops is degrading because it implies that it's a workstation that relies on loops.
What DAW you choose doesn't have anything to do with what video game music sounds like. If I learned both Pro Tools and FL Studio, I could make a song sound the exact same way in both. The arrangement and production of a song are not a result of the program you use, it's a result of whatever you did. Each program has a different way of doing things, but you can use every single one to get the same result. It's all a matter of which workflow you prefer.
Referring back to Yoozer's pattern explanation, I like to use patterns when not only making dance beats but composing any type of music; I just like that I can store bunches of different MIDI data in reserve and then stick them on the playlist where I see fit, rather than in other DAWs where you have to write a MIDI block onto the playlist/arrangement window to write something (and if you delete that, it's gone forever). That's my personal taste in workflow because I write all of my music by mouse, but if you do something like Yoozer said and you use a controller keyboard to put your MIDI data into your computer, something like Cubase or Pro Tools can be a more beneficial option because everything is linear and you won't be storing patterns in reserve for use.
But before you buy an expensive piece of software, you should learn the ropes of composing and producing, and there are some great free pieces of software for that:
REAPER - An entire free DAW. Supports MIDI, VST's, and Audio Recording. What more could you ask for?
Kore Player - Has some cool synths and acoustic instruments. It's a free VST that you can load into a DAW and write MIDI (in a piano roll) to make it play whatever you write.
Guitar Rig 4 Player - If you play guitar, this is a great starting point for an amp sim. It's also a free effects VST.