There really isn’t anything like the sense of accomplishment one feels when playing an action/exploration game. Games like Metroid put you in bizarre world with bizarre alien life forms and no real direction to go in. With every new hostile alien encounter came a new victory that was yours solely. No one explained to you what the enemy’s weakness was and no one really told you how to win, you just did it and you succeeded…hopefully.
An Untitled Story borrows several cues from the Metroid series and others like it (i.e. any Castlevania games post-Symphony of the Night games). There really isn’t much in the way of storytelling, but a cohesive narrative is certainly implied. That is to say, there was clearly some thought regarding the world of the game and the role you play as a sentient egg (and later a chick), but the game doesn’t allow itself to get too bogged down with the narrative. You’re an egg that can roll around and jump, bam, we got a game!
With the exception of bosses, there aren’t a lot of sentient life forms that want to get in your way and any you do encounter are easily dispatched. While there isn’t any real incentive to killing these foes, occasionally they will drop ‘crystals’. Crystals are the collectible currency of the game which you can trade at a store for various upgrades that you can’t find out in the wilderness. The currency does add another layer of depth to the game play, but it proves to be a frustrating one. Things you want to buy are often very expensive and crystals are tremendously rare as not every enemy you vanquish will drop them. There’s an upgrade you can obtain in order to increase the odds of enemies dropping crystals, but this upgrade alone is only accessible through one of the most grueling sequences of the game.
Progressing through the game is an exercise in repetition and patience as you will frequently find yourself backtracking to areas to access secrets you couldn’t reach earlier. While this promotes the tried-and-true formula of exploration, the same backgrounds can get a little stale and this feeling is only doubled if you get lost.