Stop pressing the NDS B button (mapped to the 'Z' keyboard key by default) when you are choosing "New Game". You need to press the NDS A button (mapped to the 'X' keyboard key by default) to progress through the game menu.
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define "start screen"
stop using a hacked rom. This works fine for everyone else.
Closing, due to user error.
Stop pressing the NDS B button (mapped to the 'Z' keyboard key by default) when you are choosing "New Game". You need to press the NDS A button (mapped to the 'X' keyboard key by default) to progress through the game menu.