0.90u3: Derrick Renaud added proper filters to the Namco52 sample player of Bosconian, Galaga, Pole Position and Xevious. 0.94u2: Derrick Renaud added proper watchdog to Bosconian. 0.94u5: James Rowan corrected Bosconian starfield. Do - We have Bosconian bezel, thanks to the loan by Vintage Arcade Superstore and cleanup by Ad_Enuff. Replaced Namco 54XX and Samples sound with 3x DAC sound. Added MB88xx (256000 Hz) CPU4 with 1k rom 54xx.bin. Pole Position and Bosconian no longer require samples as a result. 0.112u1: Replaced implementation of Namco 54xx sound chip with new MB8844 CPU core running the original embedded ROM code. 0.112u2: Replaced 3x DAC sound with Discrete. 0.114u1: Nicola Salmoria added actual emulation of the microcontroller used for the Namco 50xx chip as found in Bosconian and Xevious. 0.118u5: Changed palettesize to 580 colors. 0.119u3: David Haywood added the rom loading for roms 51xx and 52xx.bin, which are dumped but not yet hooked up. Do - Zorg is back, and vectorized Bosconian, to make it look even sharper and crisper than ever. Changed MB8842 CPU4/5 and MB8844 CPU8 clock speeds to 1536000 Hz. 0.131u3: Aaron Giles changed the Namco 52xx and 53xx devices to run the actual MCU instead of simulating the behavior. Added proper conditional bonus (based on number of starting fighters) to Bosconian. 0.133u1: Brian Troha added DIP locations to Bosconian. 0.139u1: Alex Jackson fixed Bosconian from reboots or hangs. 0.143u8: Kanikani fixed DIPSW and DIP locations in Bosconian. 0.144u1: hap fixed game resets at various times in Bosconian (new version) and clone (Midway, new version). 0.153: Try to improve sprite-bullet alignment in Bosconian. bosco and clones: About the graphic of title screen. Explosion of a space mine or a base changes the pitch of the player's shooting sound. Press 'Insert' to speed up the slow IC test routine.

Bosconian 2 blast off