Hammerin' Hero is a platforming, beat-em-up, action game for the PlayStation Portable (PSP) developed and published in Japan by Irem Software Engineering (as Ikuze! Gen-San: Yuuyake Daiku Monogatari), published in Europe by DHM Interactive (simply as GenSan) and published in North America by Atlus.
I don't think I need to put a spoiler alert for this game review but just in case if people are wondering - no, I won't go into details regarding the story but I will mention several of the levels/characters/unlockable items that were featured in this game. I won't give the full list of those things of course but if you want to be surprised when you unlock any new stage, character or item, you might want to avoid reading this review altogether then.
So what is this game about? When a small town is threaten by a huge company (the Kuromoku Company) who wants to demolish the area and develop the land, Gen, a local townsfolk come forward to fight them in the hope of bringing an end to their evil corporation plan. It's a platforming game so it's understandable if the story is not something the game is focusing on but regardless I find the story quite entertaining and easy to follow, the story was told in a kind of cute way too. In this version that I played, players have a choice between English or Japanese voice-overs. I chose mainly English voice-overs. Although some characters' voice-over were pretty bad, for the rest it was quite good with the lines delivery were quite funny, and I mean that in a good way. I like the main character's English voice-over, Gen, the most. The voice actor (sorry but I don't know who it was) did it just right, not too over-the-top but not quite plain either.