Touhou Fugyouseki - Nightmare of Sleeping Girl 　

Plot Point: A mist is spreading, causing locals in Gensokyo to fall into a deep endless sleep. Yukari gathers and guides the few remaining souls who remain awake to fight their way through endless waves of enemies as they wake up their friends and bring down the mastermind of this whole incident

How it Works: You start out the game with Yukari on the left most part of the field. You have the ability to summon any one of the five starting characters to defend Yukari and help in advancing through the dungeon all the way to a gap leading to the next dungeon after defeating the dungeon's leader.

*Things to take note of*
The Title Screen: The left button in the main menu starts the game from the last save made (It automatically saves your progress when you quit the game).
The right button deletes your current save file(do take note that you are only given one save here, and that any progress you've made like unlocked items or recruited characters are lost aside from the progress made when you do so).

Character Deployment: All characters are manually deployed. There's a limit on the number of characters you can deploy at once, based on the current level of the dungeon which increases as you advance through the stage.

Not-so-gentle Winds: Every turn a large gust of wind will blow through the field, damaging any units you currently have deployed. Enemies do not take damage from these winds, and the damage itself is based on the stage level. This wind is not present in most dream stages.

Making friends along the way: There will be gaps that pop up after progressing enough through a dungeon. Clicking it will open up a dungeon selection menu, send your deployed units in to clear the dungeons. Clearing the sub-dungeons between every main dungeon unlocks playable characters as well as giving you a hoard of useful items.

Leveling up: Do your best to keep your force at full strength. Move at a timely pace and manually level up your characters as they do not level up on their own. Enemies grow stronger and even stronger variants appear as you progress. Keep your units above their level to ensure that your units can take them head on, but don't over-invest on characters as their cost may go too high, leaving no room for assisting units.

Items: This is a very fundamental point for the game. As you fight enemies, you'll begin to see your units acquire items from their kills. When a unit is not deployed or is recovering, you can edit their inventory and drag in items to increase their strength. Common items drop from enemies all the time, and can even be compressed to take up less space and make room for more items.

Special items: There are common, uncommon, and unique items in the game. The unique items are the best versions of the stat specific items that give the highest bonus that can possibly be given by a single item at once. Only one of each unique  item can drop, and are only obtainable from dream battles.

Selling and compressing items: on the right side of the items menu are two things: the item press and the selling compartment. Items that are compressible can be dragged unto the press to make them smaller for a price. You can also sell unneeded items for a rather small sum of money, and if you sell enough items, you're given a consumable item that can be used to expand a unit's inventory by 1 small square.