I*.  ![](pone.0000000.t000){#pone.0000000.t000g}    --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------   Original Evaluations Items                                       Concrete Design Features with Significant Impact                   Constant   B Value   Beta\                                         T Value   Sig.                                            Mean/SD                                                                                                                                                            (β)                                                                                                        ---------------------------------------------------------------- ------------------------------------------------------------------ ---------- --------- --------------------------------------------- --------- ----------------------------------------------- ---------   ***Item 0*. *Favourable Level Design***                          E. Increasing difficulty or speed of the levels                    0.000      .000      .000                                          0.000     .000[\*\*](#t000fn000){ref-type="table-fn"}     0.000\                                                                                                                                                                                                                                                                    0.000    J. Ability to download other music to play game                  .000                                                               .000       0.000     