The best replacement for pokemon blue is pokemon red.

The best alternatives to pokemon blue are rated as following:
★★★★★  pokemon red

Your alternative for pokemon blue is not listed? Suggest!
Speaking about pokemon blue, one probably shouldn't forget about gameboy.

Other search terms related to pokemon blue and their ratings are:
★★★★★ gameboy
You have in mind a companion for pokemon blue and it is not yet here? Propose!



Google Trends

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pokemon blue
pokemon red