2018/07/29 2.91 released - The processing timing of the internal sound source (wave memory sound) has been adjusted. I think that it approached the sound of the real machine. - As a result of the above adjustment, the problem that Ootake may not move smoothly if the power plan of the control panel and the graphic driver setting are "power saving" mainly when using notebook PC of Windows10 was solved. - The speed and timing approached the operation of the real machine. In the "Power Drift" demo screen (during no operation), the problem that raster scroll was flickering for one frame was solved. - Additionally, a detailed part has been improved and corrected. + I began Twitter. (Japanese language & a little English language) http://twitter.com/kitao_n * The happiness of the game is the world human race commonness. It longs for peace. * I think that it cannot do improvement & correction of the above-mentioned if there are many neither operation report nor defect report. Thank you really for you who reported.