Thanks for playing! Sorry I didn't see this sooner. The demo difficulty is intentionally a little easier and there are around 6 or 7 other enemy types that do not appear in the first level but will appear in levels 2 and 3. You did find a bug with the laser line which has since been fixed. It wasn't putting a delay on how much it can damage the boss, so it just damaged the boss multiple times per second, instead of a few times over a few seconds. I also did add a "teleport" option for traveling between rooms. So for those that don't like the flying between rooms and the time it takes, there is a setting that when it's enabled, you will just be teleported between rooms. Thanks for playing and taking the time to make a video! It's extremely helpful to see playthroughs so I can get good indicators where there might be confusion and things like that!