Arcade Archives: Ikari Warriors

In order to unlock this trophy, you will need to submit a high score of at least 20,000 points or more to register it in the online rankings of Hi Score mode.

As stated in the description for the Score 200,000 points trophy, the key is to survive, but thankfully, you do not have to travel as far as you need to like in original mode as long as you reach the score you need to unlock the trophy.

Much like in previous games in the Arcade Archives library, Hi Score mode limits you to the game's default settings in the arcade version, which means that you cannot change the number of lives to make this easier, and if you press the while playing in this mode, you cannot back out of the pause menu unless you retry or exit Hi Score mode.

As with original mode, you should also be careful when submitting it in this mode too, as you might accidentally prevent yourself from doing so by pressing (or if you are playing an Asian/Japanese version of the game), so be sure to wait till the screen shows up and press (or if you are playing either the Japanese or Asian versions) to submit it.