You press S to save! To open the menu you have to press X or the ESC key! To access the game tutorial, you go to the menu, go into the bag tab, go into key items and you'll see the Manual, where you can access any game information and also shortcuts! I hope this helps!
Thanks! I like this game, however its quite hard understanding the game play and how to fight/utilize stuff, hoping something on the main menu will help so I can further enjoy the game :P
Now that we moved to Game Maker there's a bunch of improvements on the menu to help people understand the game's stats and overall gameplay, so hopefully that will help you a ton when the full game is launched! :D