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Hi, Pere.

It's nice to see it progressing. I hope you manage to finish it and we get lots of games!

The sprites take a lot of space because for every sprite, 4 images are stored which are all preshifted images of the previous image by 2 pixels. I see. That might be optimisable or, maybe, use 128x96 4 colour mode to save a few K. On the Atom I have 34KB free and I must say that 90% of the games fi...

I had a quick look at the Z80 code, using "apulia" (Apulija-13). Excluding data, there's 5,805 bytes of engine code and 2,378 bytes of game-generated code. Total output: ~32K, which appears to exclude the screen memory, some upper memory buffers and the ROM call to read the keys. Clearly, this game ...

It's amazing how many more AGD games have been developed since I started this thread! Some of them would be great to have on the Dragon/CoCo.

Rick Dickinson has done an outstanding job on the Spectrum Next case design. What's inside it though? Is it an FPGA? Also I gather they've added new graphics modes etc.? It's an FPGA - "a bit bigger than the Uno's". It's a bit hard to keep track of the specs, but here's a reasonably up-to-date link...

Hi, Pere.

Nice work! It's always good to see a new production on the Dragon.

The new easy mode is very welcome indeed! The key colours, especially, make exploring much easier. I've now made it to level 6! I haven't had a chance to try it on real hardware yet, I will do so in the next few days. In the meantime, I would point out that the main colour of a baddy is different if...

This is a bit of a long shot, but I once tried to drive a CoCo using a PSU with a lower voltage, which resulted in the screen output being pretty weak (also, it couldn't operate the tape motor).

Perhaps the PSU output voltages should be checked?

I've tested it on a real CoCo 2 (PAL) and, wow, is this game hard! I've made it to level 4 now. Using a non-self-centring joystick is mega-tough. Diagonals are very awkward, you spend a lot of time stuck against the wall while trying to move the joystick to a useful position. You can't fire while "s...

I'm impressed, it's a good conversion with nice presentation! It's quite fast. I find it quite hard to play, as a single player game, but that is to be expected. I shall try copying it onto my MicroSD Drive Pak and then try to run it on my CoCo 2 with various joysticks (if the loader is compatible w...