Luigi Power Up! is a Japan-exclusive e-Reader card in Super Mario Advance 4: Super Mario Bros. 3. Released in Series 1 in Japan, it gives Luigi his scuttle ability from Super Mario Bros. 2 and makes his fireballs bounce higher, as in Super Mario World: Super Mario Advance 2. It can be used in the main game, and in World-e (although it is permanently on by default in World-e, without ever needing to scan the card).
1UP Kinoko ga 3UP Moon ni kawaru! is a Japan-exclusive e-Reader card for use with Super Mario Advance 4: Super Mario Bros. 3. It was released in Series 1 in Japan. It can be used in both the main game and in World-e. Its key art was orange and featured a red outline of Raccoon Mario, specifically him crouching with his tail extended.
Once it is scanned, all of the 1-Up Mushrooms in the game become 3-Up Moons. This feature allows Mario and Luigi to accumulate extra lives more easily.
An unreleased game for the Battletoads series which never made it past the alpha stage, and it would've used pre-rendered sprites similar to the Donkey Kong Country series. Only 2 stages were close to completion, being a remake of Ragnarok's Cavern and a side scrolling stage similar to Artic Caverns.
A ROM hack of Pokémon Emerald with enhancements which modernize the game but also make it stay true to the vanilla experience. Optional features include: physical and special move split, reuseable TM's, a built-in Nuzlocke mode, and more. Made by resetes12.