Question: how to get mgp fast?
Answer: 10 rounds of Tripe Triad (5k), 10 won games (8k) - very, very easy. ... 
Minigames - complete 3 games (1k), earn 100 MGP from them (1,5k) - even easier, just pick the minigame you like the most = 2,5k MGP in 2-3 minutes.