Cosmic Fantasy (PC Engine)
You couldn't make a more generic 16-bit RPG if you tried. It's ridiculously linear, with you going from town to town solving the local problem (always by killing a "boss" enemy in a nearby cave or tower). You start out with a single character, but are joined by a second character shortly into the game. The main hero is strong with (basically) no magic ability, and the other character is weak but has strong magic abilities. There's not much you can do with that.
Every random battle is a war of attrition, so you absolutely need to cast the one spell that halves damage every single battle. Then you need to heal at least one character after every battle. However, healing magic is both cheap and powerful, so it ends up just being busywork rather than a challenge. You can also purchase ridiculously powerful healing items cheaply (heal to max HP and MP instantaneously), and there's nothing else to spend money on; at just about over halfway through the game, I've spent the last 5 hours or so with max gold simply because I don't have anything to spend it on. You also always go first in combat, so unless you somehow get to the point where you stumble into a cave low on HP and MP with absolutely no items, you are basically invincible.
The game feels unfinished and buggy. There are a ton of weird items that seem useful, like stuff that is supposed to freeze enemies, or slow them down, or whatever. The thing is, absolutely none of it works. You have a spell to escape dungeons, and it doesn't work in 90% of the dungeons. You have a Run command, but it never works. You have a spell that's supposed to block enemy magic spells, but no enemies cast magic spells. You have this system of barrier and gun items, but the barriers basically never work, and the guns require expensive ammo yet do less damage than your regular attacks. The solution to every single encounter in the game, including bosses, is to cast the defense spell and then just attack until you win.
It also looks like garbage. Yet another PC Engine CD-ROM game where, after spending hundreds of dollars to get next-gen gaming, you're stuck with something that's barely a step above Famicom games.
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This is another of the "legendary" RPG series on the PC Engine, like Tengai Makyo, so hopefully the first entry is just awful and then it gets better with the second game.