Released on July 23, 1992 (Thursday) in Japan at a retail price of 8,300 JPY.

Deceptive Goblins-and-Ghouls Difficulty:
Despite the whimsical, cute "super-deformed" character designs traditional to Namco's fantasy universe, the game is infamous among retro collectors for its grueling, unforgiving difficulty level. Precise execution of Sandra's advanced movement mechanics is strictly mandatory to navigate bottomless pits, spikes, and aggressive enemy layouts.

The Risk-and-Reward Jump Engine:
The gameplay physics center entirely around Sandra's unique physics-based acrobatics. He can perform basic hops, a rapid forward dash-jump, or a powerful, charged vertical high-jump. Overusing high-level jumps or landing awkwardly induces a distinct, animated dizziness status mechanic, leaving Sandra temporarily frozen and completely defenseless against incoming hazards.

Branching Narrative and Bad Endings:
The game features an early example of dynamic narrative choices in a 16-bit action title. Throughout his travels, Sandra is presented with dialogue choices when interacting with NPCs. Selecting selfish or incorrect answers doesn't just change text—it actively locks players out of the true ending, occasionally triggering abrupt, dark "Bad Endings" right on the spot.

Export releases:
[US] "Whirlo [Model SNSP-SH]"