Thanks for the positive comments, and the comprehensive bug reports.
I haven't look into detail for them all, but regarding 'water surface level aware color tint effect', I'm not sure what you mean. The effect where the lower part of the player changes colour when they are in the water is working in World 1. World 2 uses a different approach where the entire palette changes as you travel under water. Both of these should be the same as the original Amiga version.
As for the Make my day sound effect. I knew about this, but my choice to use an audio mixer (and so never have the music channels cut out) meant it was not as easy as the original game to modify sound effects to play at different frequencies.