Denki Blocks! ROM

Also, be sure to check out Boulder Dash EX.

Denki Blocks! is a puzzle video game developed by Denki and originally released in 2001 by Rage Games for Sky Gamestar and the Game Boy Color and Game Boy Advance. In the game, players manoeuvre different coloured blocks around a grid to join those of the same colour together. The game features versus modes for multiple players. Denki Blocks! was ported to the PlayStation Portable in 2011 by Tiger Games, and to Android the same year and iOS in 2010.

In the Game Boy Advance version, there are three single-player modes: Tournament, Workout, and Perfecto!. Tournament mode has the player solve at least 15 of groups (of which there are eight of increasing difficulty, each set by a “leading Denki Blocks! player”) of 25 puzzles. Doing so earns a trophy and progression to the next level. In Workout, players can practise forming shapes, and Perfecto! challenges the player to make a Puzzle Islander’s favourite shape more quickly and efficiently than they can.

The multiplayer modes consist of Race, All Change!, and Battle. In Race, players race to make shapes. All Change! has two stages, the first of which is to join Gumblocks within 30 seconds. Players who fail to do so are eliminated. Shapes are then swapped amongst players, who then have to form it. The first to make their shape wins. Battle is a turn-based mode where players join every Gumblock of their colour. Turns end when blocks are joined.