thanks for lasting that long. :D btw, in the options screen, there's a cutscenes section. you can read the story further before Ichirou went out of the tutorial temple.
You really went all out on the upgrades. Very creative. I haven't played for long but I already discovered the fireworks can be set on fire and fling the enemys into the air. It needs a bit more polish and optimization to prevent lag. Also props for making the sound effects yourself.
The upgrades are very creative. Usually you mindlessly dig down vertically but in this game you have to think about what you are doing so you can return to the surface to recharge.
thanks for lasting that long. :D btw, in the options screen, there's a cutscenes section. you can read the story further before Ichirou went out of the tutorial temple.