Activating this trainer:
Press F1 at main menu.
Listen for 'Trainer Activated'.
Press desired hotkey.All hotkeys can be changed on the trainer.

Trainer Options:
NumPad1: Infinite Health
NumPad2: Infinite SP
NumPad3: One Hit Kills
NumPad4: Unlimited Burst
NumPad5: No Skill Cooldown
NumPad6: Unlimited Items
NumPad7: Max Friend Affinity
NumPad8: EXP Multiplier
NumPad9: Change Money By 50000
NumPad0: Change Skill Points Plus By 5
NumPad/: Change Skill Points By 5
NumPad*: Max Skills
NumPad-: Maximum SS Mastery
NumPad+: Super Speed
NumPad.: Slow Motion

Editor Options:
Modifier: EXP Multiplier
Misc: Money
Misc: Hollow Points
Misc: Skill Points Plus
Misc: Skill Points

Notes:

Max Friend Affinity: While active open your friends page and select each friend.

EXP Multiplier: While active your gained EXP is multiplied by 2. You can change the multiplier by changing the editor value of 'Modifier: EXP Multiplier'.

Money: Open your ingame menu where money is shown first.

Skill Points: Open your skill page first.

Max Skills: Open your skill page first. While active scroll through the skills and all skills are maximized.

Maximum SS Mastery: While active cycle through your masteries (skill palette) and they are maximized.

Unlimited Items: While active open your inventory and cycle through all items.