Combo:goalkeeper & baseball

Brief descriptions and operations are as follow.
(1)There are 6 3D games which will be paired to form a product line. From this product line, the customers can have a discount when purchase more than one game.
(2)The "Swap" item in the main menu can switch the games between the goalkeeper and baseball ball. In this combo, the scores of each game can be shared by each other.
The operations of goalkeeper:
(1)There are 405 levels which can be divided into 3 phases.
(2)A kicker kicks the ball from a fixed position in phase 1, level 1 to 135. Randomly, two forwards will pass and shot the ball in phase 2, level 126 to 270. Besides passing and shooting the ball, two forwards will move forward in phase 3, level 271 to 405.
(3)Each phase not only have different shooting and passing speeds but also have different ball flying styles, e.g., straight or banana ball. Beyond the previous description, there are a lot of varieties waiting for you to explore.
(4)For starting the game, clicking the panel can pop up a menu and choose play item.
(5)Player is the goal keeper. Shaking the device to any direction can make goal keeper jumping to block the ball. However, player should remember to pull the the device back for playing next ball.
(6)The magnitude of shaking can decide the goal keeper jumping far or near. However, two direction buttons on the screen can assist goal keeper to move left or right for easier blocking.
(7)If the score is high enough, the player can challenge a specific level. Lower the assessment can make player pass through all the levels easier but time consuming.
(8)There are background sounds to increase the presence. This game fits for all ages and genders. Also, this game combines entertainment and exercise.
(9)Perhaps, it is hard to block the ball at the first time. After playing more, this is not a tough game any more, because player will get use to the rhythm.
The following describes the operations of baseball:
(1)In this game, there are 180 levels. The remote control mode contained 90 levels is an old method for playing this game. The virtual reality mode, a brand new mode, contained 90 levels. This hitter, player, can has an immersive experience.
(2)A popup menu will show up when you touch the panel. The "Start" menu item can trigger the game and pitch the ball from pitch machine.
(3)On the left bottom corner of the screen, the plus sign button can swing the bat when the ball is launched. Holding this button can increase the speed of swing.
(4)There are direction buttons which can move the bat to up, down, left, and right for hitting the ball precisely. The ball can fly higher, faster, and further if the ball is hit by the topmost of the bat.
(5)Holding the direction buttons can move the bat consecutively. The hitting score depends on the swing speed and the accuracy of hitting.
(6)There are many mechanisms to let player play every level.
(7)This game was closer to the reality, because it added many physical phenomena and mathematics into it.