MAHOU.OS

What the 256KB cap actually gates

You do not socket chips in the tower. You socket them after the backup, in the lab still with the CRT stack and the black table. The 125/256 screenshot is the only official occupancy number; treat it as a snapshot of one Fernet board, not a recommended spread. Coins and crystals on that still are the only first-party chip prices this site will quote, because community wikis that list Old World Coin costs are not first-party.

Living in the Database and Stocked are the two completion rows. Together they tell you the board can be filled and that a finite chip list exists, without naming every chip. If a later patch publishes the roster, this page should gain rows rather than flavor text. Until then, plan around the cap and the named Heavenly Curse Chip rather than a guessed meta loadout.

Fernet’s 125/256 still is also proof that data occupancy is visible in UI. You can see how full the board is before you buy. That is why this page talks about a cap instead of a mystery bag of chips. Plan the last 131 KB after you know which named chip you still lack.

Heavenly Curse Chip versus the transformation

The Heavenly Curse Chip is a collectable with its own achievement, The power of the Moon. Store copy for the curse itself is the combat hook: harness the tower, dispel the Heavenly Curse, deal a nearby burst, and enter a short true magical-girl form. The chip and the transformation are related names, not interchangeable buttons. Read Heavenly Curse for the burst and form; stay here for the OS board that holds the chip.

Self-Healing Protocol on the 125/256 still is the only other named chip with a visible cost. That is enough to know chips have names, costs, and data weight. It is not enough to print a tier list. Pair the board with mementos if you are trying to decide what you still pick up during the climb itself.

The curse chip’s achievement sits in the same Steam column as unit unlocks and place visits, which is why players look for it mid-roster rather than in a separate DLC. It is still an OS object. Socket it in the lab. Trigger the form in the tower. Those two rooms stay distinct on this wiki on purpose.

The laboratory is the OS room

The cluttered workshop still with CRT monitors is the visual for chip work. Store copy places that lab on the outskirts of the last holdout, separate from Babel’s streets. You die in the tower, you wake on the revival table, you spend, you leave. The New Game menu still that sits on the Babel page shows Fernet on that table under Story / Normal / Sinner, which is why difficulty choice and chip spending share a room even though they are different menus.

God is in the cables is flavor printed on the OS board, not a boss name. Data transcends time is the same kind of line. Keep them as UI texture. The numbers that matter on this page are 256, 125/256 on one official still, 10 coins, 10 crystals, and the two completion achievements. Everything else is a later patch or a community table this site skips unofficial.

Chip board