Waka is a memory / speed of reaction game, consisting of two stages:
1. The prepare stage. Requires the user to memorize a pattern of shapes (the order in which they appear). The shapes stay on screen until the user touches them in the correct order. After a while, if no interaction, the shapes animate in the order in which they need to be pressed. They difficulty levels mean a variation of the shapes shown, from 3 (easy) to 6 (very hard). At every retry / reload / reset, the number of shapes remains constant for a level of difficulty, but the actual shapes are randomly generated.
The pattern always respects the no repeat of a shape within a 3 group of shapes. So the first shape cannot repeat until the 4-th position.
2. The game stage. During this stage, the user is presented with 15 shapes on screen (number to vary), on a grid of 30 possible positions. The user doesn’t see the grid, but only the positions which are active at a time.
The shapes need to be touched in order to gain points. Once a shape it touched, it is randomly replaced by another one from the initial pool of shapes and order.
The user needs to press them in the correct order as presented in the first pattern, but he gains multipliers every time he presses on similar shapes. So for example if after green follows blue and then red, once he touched the green one he can press on as many blues as he wants or on a red one.
The game design needs to be very simple and flat. I tried to go for a retro (read Bioshock) which I find to look quite nice, as icons with long shadow work within this graphic theme. So I would strongly encourage the retro (Bioshock, Fallout) design.
Menu interface design. Clean, easy to understand and read. Needs to also present random information in pop-ups or bars or posters in the lower part. The options are new game, resume game, settings and shop.
Game scene interface design. There needs to be a timer bar, multipliers (once you gain them on screen and also in the upper part of the screen) and score.
Shop screen. There will be an in game shop screen, where users can buy themes or bonuses.
App icon. Self explanatory