1. Its the same as Blitz Basic, but with GUI commands in it. Also, BlitzPlus is still seeing updates, Blitz Basic isn't.
2. I personally find it very difficult due to the lack of a form/window editor. All the gadgets have to be placed manually, in code, and it seems like a lot of trial and error to get stuff in the right place. Its crying out for a form editor like the one in PureBasic.
3. I don't really code much 2D stuff any more, so I don't know. I have heard people say that BlitzPlus runs stuff very slightly faster than Blitz Basic though.
The best thing you can do, is download the BlitzPlus demo and try your Blitz 2D game code in it. It should work with very few (if any) modifications.
2. I personally find it very difficult due to the lack of a form/window editor. All the gadgets have to be placed manually, in code, and it seems like a lot of trial and error to get stuff in the right place. Its crying out for a form editor like the one in PureBasic.
3. I don't really code much 2D stuff any more, so I don't know. I have heard people say that BlitzPlus runs stuff very slightly faster than Blitz Basic though.
The best thing you can do, is download the BlitzPlus demo and try your Blitz 2D game code in it. It should work with very few (if any) modifications.