Pocket Bomberman

Jacky / ジャッキー: An evil tree with sunglasses. Slowly walks forward two steps at a time before pausing for two seconds. Only turns around upon touching a wall or if Bomberman is nearby.

Eyti / エイテイ: A spherical furry yeti beast. Slowly walks around the platform it is on, but speeds up once Bomberman is in its sights.

Gates prevent you from passing through them. Bomb the top to make the gate retract.

Flip-boards serve as platforms, but if you jump on them (or jump into them from beneath), they flip, allowing Bomberman to pass through.

Spikes hurt people. Don't stand on them.

Electricity generators generate electricity between them periodically. Keep an eye on the timing and you should be safe.

The first area should be pretty straightforward. About the most difficulty I could see happening is getting that Jacky on the left without unintentionally hurting or killing yourself.
ITEMS: Bomb Up, Fire Up, Speed Up x 2, Clogs, Heart
ENEMIES: Jacky x 4
PASSWORD: 7693

This introduces a new enemy, Eyti, and has a lot of vertical platforming. The Full Fire can come in handy.
ITEMS: Bomb Up x 2, Speed Up, Armored Jacket, Full Fire
ENEMIES: Jacky x 4, Eyti x 1
PASSWORD: 3905

Lots of gates here. Don't bomb the blocks with the spikes in them, for obvious reasons, and try to hit the far left Jacky without hitting the block he's on, or else you'll have lost a very handy Remote Controller.
ITEMS: Bomb Up, Fire Up, Speed Up, Full Fire, Remote Controller, Penetration Bomb
ENEMIES: Jacky x 4, Eyti x 2
PASSWORD: 2438

Those generators occasionally shoot deadly waves between them, so be careful. Thanks to the wonky camera, those Eytis on top can kill you if you're not careful.
ITEMS: Bomb Up, Fire Up, Speed Up, Penetration Bomb, Armored Jacket
ENEMIES: Jacky x 2, Eyti x 3
PASSWORD: 8261

Torent / トレント can be difficult if you don't have many Fire Ups or lack the Remote Controller (or to simplify, if you used a password to reach here). He flies along after you, occasionally stops to shoot bullets in four diagonal directions, or to deploy two caterpillars that crawl along the floor and shortly become moths that flutter to the top and off the screen.
When you hit him once, you can stand on that left platform and keep planting bombs and he'll get hit by them every time, granted your blast radius is long enough. Requires 5 hits to defeat.
ITEMS: Bomb Up, Fire Up, Speed Up
PASSWORD: 1893