It might be for the most hardcore players, but I think making you play through THE ENTIRE GAME on one life just to get ONE CHANCE to fight the boss carries an excessive punishment for failure (repeating the FULL GAME after EVERY MISTAKE is not something I consider fun or fair design).
But that's not
how it is. The game auto saves at every stage, including the Cossack and Wily stages. If you die, you don't have to restart the entire game if you want to fight the secret boss, you just need to hit reset and then redo that particular stage.
Making a boss that's a royal pain to even get a chance to play and then even more of a pain to kill is another bad decision. You only get one shot at fighting him and he has a one hit kill attack that he performs many times during the fight.
I completely disagree. This is an optional fight for those who want the extra challenge. You neither have to fight him nor are punished for not doing so. The difficulty of the battle too was done purposely so that there's an actual challenge to the secret boss.
The requirements to face him aren't as strict as you make them out to be. All you have to do is simply not die. You can take 27 units of damage on any stage, just as long as you don't take 28. As mentioned, the game auto saves after every single stage is completed, so if you die, you only need to reset back to the start of the stage, not redo the entire game. Also, new to the prealpha, is the difficulty selection! If you find the vanilla MI too difficult, simply adjust the difficulty to your liking.
The boss fight is challenging, but if you play your cards right, the battle is doable. You have to go in fully stocked. Don't waste any of your weapon energy or E-cans on the first two Chamarabots. If you go into the fight fully stocked, you stand a fighting chance. Avoid using the Megabuster, and instead rely on Water Jet, Toad, Drill Torpedo, Holdable Control Ring Boomerang, anything and everything. The boss is suppose to truly challenge you to the limit. Use E-Cans when your health gets low.
Drakon, I've watched your playthroughs and you're at least as good of a player as I am, if not better. If I can the final boss fight, surely you can as well.
At the end, even if you loose, its not that big a deal. Just hit reset and try the stage again. Your hack to lower the difficulty misses the point of the whole thing.