Possible bad sprite priority with lives and arrows icons at the top-left of the screen. It only happens with the sprites that simulate a tree leafs layer in some levels, for example at level 2. Maybe someone can compare it with the original cartridge.
再現手順
Play the game and reach level 2.
追加情報
If you can't reach to level 2, here's a video link with the possible issue (Min 4:31):
グラフィック