Collect LEGO Studs
The whole point of the game is to collect LEGO studs strewn across each level. These studs function as in-game money and allow you to purchase things, such as new suits and new characters from the LEGO store. While there are many visible studs, many more are hidden. To find them all, destroy everything you come across. Almost every LEGO bit in each level can be destroyed with Batman's abilities and you will be rewarded with a handful of studs. Also, take care not to die, as when you do studs are deducted from your overall total.
Use Character Abilities
Throughout the game, you will be able to control not only Batman himself but almost everyone from the Batman universe. Each character has different abilities that you will need to use to access different parts of each level. For example, Mr. Freeze is immune to toxins, so he can cross toxic waste spills without dying, allowing you to access new areas.
Use Batman's Suits
The heroes in the game can access different suits that have different abilities. There is a demolition suit that can set bombs, a glide suit that can fly, a magnetic suit that can scale magnetic walls and others. When you come to an impassable area, use the suit changers to change into a suit that will allow you to proceed. New suits can be bought from the store with studs.
Find Hidden Items
Each level has 10 hidden LEGO canisters and one hidden red LEGO brick. When all 10 canisters are collected, you will be able to assemble a mini kit LEGO model that will be displayed in your trophy room. Completed mini kits also reward you with 50,000 studs, giving you more purchasing power in the store. Red bricks unlock new suits in the store that can be purchased. Find these items to unlock all of the collectibles in the game.