Hello,
Now we are involved in some other projects of higher priority but we can assure you that we are reading your suggestions and we will try to deliver Explode Arena for OS9 asap. You must remember that the high quality of the product is our main goal so we have to make sure that such conversion would work without problems on the new system and that the converted game would provide the same high level experience as its predecessor. Just a little bit more patience please

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Best regards,
Mike