The 10 obsidian blocks are scattered across different locations where Alex is trapped. You need to navigate through various challenges and explore the game world carefully to locate each one.

If you fall into a pitfall, your character will die, and you will need to restart from the last checkpoint or load an earlier save.

You should avoid TNT as it can cause an explosion if touched, which may result in the death of your character. It's best to find a way around it.

There isn't a built-in map, but you can use the in-game compass to guide you towards Alex's location. Pay attention to environmental clues and hints provided during the game.

The Alexsin portal is essential for rescuing Alex. You need to collect 10 obsidian blocks and place them in the correct formation to create the portal. The specific arrangement may be indicated by in-game instructions.

While there are no traditional power-ups, you can find tools and weapons along the way that will assist you in overcoming obstacles and surviving dangers such as TNT explosions and pitfall traps.

The ultimate goal of the game is to successfully reach and activate the Alexsin portal using 10 obsidian blocks, which will allow you to rescue Alex and complete the love story between Steve and Alex.

The difficulty of the game varies depending on your familiarity with puzzle-solving and platforming mechanics. Be prepared for challenging puzzles and precise navigation to gather all the obsidian blocks and reach the portal.