Thankfully, she picked a good game, Solstice: The Quest for the Staff of Demnos, a game I originally bought purely because of the awesome Tim Follin soundtrack. It's an isometric puzzle platformer with pretty well-known difficulty, so I wasn't really sure how long it would take me to beat it. About 12 hours, it turns out.
You're dumped straight into it after a brief introduction, with no idea where to go. The game controls quite well, but it offers few clues that help you to play it; Shadax (your homie) does not have a shadow and individual tiles can be of several different heights - there are no visual cues like shading or lighting to know this. Many rooms are only beatable with trial and error. The goal of the game is to reassemble the Staff of Demnos (six pieces) and confront some evil wizard.
Aside from walking, jumping, picking up and dropping blocks, there is one other action you can take - using a potion. The four potions make you invincible, destroy all moving objects, freeze all moving objects or reveal all invisible tiles respectively. All of these effects only count for the current room. There are refills for each colour, but only a limited amount, so knowing where these are is fairly important. However, if you plan your route carefully then you'll barely need to use them.
There are many extra lives scattered through the game, which you will need. There are also credits, which have a rather irritating function. These credits are essentially one-use save points; they remember your keys, staff pieces and location. If you run out of lives, you'll be transported back to the last credit you used; so if you keep dying, you lose more and more progress. It may be in your interest to skip credits early on in the game to come back to them later, despite the time loss.
I started my finishing attempt a few hours ago; I had already seen maybe 85% of the game, but the last part was by far the most difficult, relying on everything learnt until that point. One set of rooms in particular took me maybe 20 minutes to get past, because of strict timing constraints. In fact, I had no lives left for the final stretch (though there is a nearby credit) so I was anxious. Finally I prevailed, though I no idea what to do after finally completing the Staff! As a small act of mercy, the game makes you permanently invincible at this point (spikes still kill you), so I wasn't too worried. There's no final boss; a cut-scene plays and you get to listen to more awesome music.
I recorded my playthrough should you wish to watch; the video is about 55 minutes long. Emily also scanned in my maps, so you can take a look! I had to stitch these together from five A5 pages...
|The upper halls; starting location is near the middle of the keep-like structure on the right|
|The dungeons and path to the final area (last 10 rooms or so aren't drawn)|