Easy homeruns
While playing a game in Season mode, press Start and go to the options. Go to "User Game Tuning" and increase your contact and power until it is a full bar. You will now be able to hit a homerun with almost every at bat.
Inside the park homerun
If you hit the ball and it goes to the entrance of a dug out, the opposing team will try to pick it up but will not be able to get to it, making it so you can get an inside the park homerun.
Quick win
Start a game, score a run, then press Start. Go to "Fast Forward" and select "End Of Game" and you will win.