I will start with the the "mechanical" part of the game, then we'll talk about the gameplay.
Like most MMO games, characters in MU can use many different kinds of magic and special abilities. Each character has its own set of spells and some weapons may be enchanted in order to provide the character with a specific spell. Casting a spell costs MP (mana, or magic point) and sometimes AG or stamina.
🔎 Hotkeys and the game's Hud:
Printscreen button, saves the screenshot directly into your MU folder->Screenshots, no other software needed
F1: ‣ Help Box
F2 :‣ Block Chat
F9 :‣ Anti Lag
SHIT+F9:‣ Hide hud
F12 :‣ Minimize the game
SHIFT + 1 :‣ Wing Hide / Show
SHIFT + 2:‣ Skill Reduce Effect On / Off
SHIFT + 3: ‣ DROP ITEM Hide / Show
SHIFT + 4 :‣ Terrain Map Hide / Show
SHIFT + 5: ‣ PETs Hide / Show
SHIFT + 6:‣ Monster Hide / Show
SHIFT + 7:‣ EQUIP ITEM Hide / Show
SHIFT + 8: ‣ Reset All to Default (Show All!)
T: ‣ Quest
Y:‣ Muun Invetory
U: ‣ Skill Imprint
I and V:‣ Inventory
P :‣ Personal Story
K : ‣ Gremory Case
M: ‣ Warping Menu
Z: ‣ Mu Helper
X:‣ Itens Shop
B :‣ Gens Menu (for Gens members)
G: ‣ Guild Menu (for Guild members)
P:‣ Party Window
F: ‣ Friends / mail function, from level 6
D:‣ Multitask bar, where you can request a player to Trade / Buy Store / Party / PM/ Request to join Guild etc., by selecting the wanted option and right click on the player
Enter: ‣ Chat
Tab: ‣ Map
PAGE UP: ‣ Enable/Disable 3D Camera
PAGE DOWN : ‣ Reset 3D Camera (Back to base camera)