Super Bomberman 4: Normal Game: Level 1-7 to 1-8 (Hammer Bomber & Dogun)
16Much like Super Bomberman 2, Super 4 ends each world, or in this case era, with two bosses for its last 2 levels, with the first boss being a bomber enemy and the second boss being a much bigger monster or machine.
For the Aeon/Primeval Era, you must first face against Hammer Bomber of the Four Heavenly Kings. His main gimmick is to swing his mace ball around in a circle, forcing you to drop some power ups if it hits you but otherwise not actually killing you. Just time your bombs right to keep hitting him, because once each of these kings are beaten, they won't be staying around for the following big boss.
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The ACTUAL boss of this era is called Dogen, which is based on actual statues of the same name that hail from Prehistoric Japan. Its main attack is to summon fire that can move on its own and detonate your bombs earlier just by touching them. Just keep your distance, because your bombs can completely disappear of Dogen passes over them.
Beat Dogen to beat this Prehistoric age and move a bit up in the timeline. Any rideable buddies and eggs you have at this point will still be with you even after this, and you're allow to play these levels again if you want.