Game Play

Nanaca Crash's entire object is to keep Taichi bouncing through the simple two-dimensional world for as long as possible. Upon hitting a certain girl, or stopping forward motion, the game ends, and the distance you covered is shown.

Starting

The game starts with the player setting the angle and power with which Nanaca (the girl on the bike) will launch Taichi. Setting the launch angle and power generally determines how the rest of the game will go. For best results, use mid to low angles and high power.

Aerial Crash

The player does have limited control over Taichi's flight path to an extent by using the "Aerial Crash." You are given 3 upward crashes to last your entire game session (denoted as † signs next to the red arrow), and one downward crash that recharges while Taichi is flying between the bottom and top of the screen. To activate an aerial crash, simply click the mouse anywhere when the word "AERIAL" is red or blue (denoting an upward or downward crash). You may only crash upwards when you are traveling downwards in the air, and vice versa. Also, the player can only use either crash while Taichi is between the trees and the top of the screen.

Effects

Once Taichi is in the air, there is an endless line of people to crash into. The upcoming characters are displayed as color-coded portraits below the "SPECIAL" box, with arrows pointing to them as they approach. Crashing into them will have effects on his flight path, as detailed below:
These girls send Taichi farther and faster.

Red: Touko (The girl dressed in red): Slaps Taichi and launches him further. Good horizontal and slight vertical speed boosts.

Yellow: Miki (The blonde school girl): Punches Taichi into the air. Good vertical and slight horizontal speed boosts.

Kiri (The blue haired girl): Kicks Taichi. Intermediate horizontal/vertical boost.

These girls generally hinder Tachi's flight.. Avoid them unless aiming for a SPECIAL.

Green: Misato (The girl with glasses): "STOP!!" If Taichi runs into Misato, he will cling to her and end the game, unless a SPECIAL is in effect. See below.

Purple: Youko (The black haired girl): "THROUGH and RUN!!" Negates the effect of the next girl Taichi would otherwise hit ("BLOCK"), unless a SPECIAL is in effect (see below). If Taichi hits one of the two boys, she will attack the boy, but the standard effect will apply. Youko generally has a negative effect, since three of the other four girls have positive effects, but she can save Taichi from Misato or lead to strong Nanaca Combos.
 
These guys mess up Taichi's flight.

-Brown: Sakuraba Hiroshi (The blonde boy): "ANGLE UP/DOWN" Changes Taichi's flight path. If traveling in a primarily vertical direction, he will be diverted to a much flatter horizontal path. If traveling horizontally, he will be slowed but propelled high into the air. As horizontal flight is both more common and more preferred than vertical flight, Hiroshi's effect is generally negative.
 
-Cyan: Tomoki (The darker haired boy): "SLOW DOWN" and "DEATH?†" Slows Taichi down. Also bad to hit.

Specials

There is a meter in the top right of the screen which displays when a special is ready, and which character you must hit. When the special of a certain character is active, hitting that character will produce a big, red, SPECIAL (Click!) prompt on the screen. If you click the mouse button anywhere on the screen before an X appears on top of SPECIAL (which happens after about one or two seconds depending on how fast the game is running), the special is activated; if not, the character's standard effect will apply.

Touko (red): "SUMMON!!", Triple "Boost!!" To activate her special, crash onto her once, and do not hit other girls. When her SPECIAL is used, a wooden sword will be summoned, Touko will change costume, and she will slash Taichi and give him a huge speed boost. After her SPECIAL is used, it will still be enabled until Taichi hits another girl.

Miki (yellow) and Kiri (blue): "Boost!!", "Boost!!/COMBINATION!!", "Boost!!" To activate their special, wait until they come as a pair, then hit the one on the left. On SPECIAL, the two will beat up Taichi in tandem and send him far. The visuals change depending on the girls' order, but the effect is the same.

Misato (green): "STOP!!", "BREAK!!", Quadruple "Boost!!" To activate her special, hit any girl but Youko (purple), and then hit Misato without hitting the ground. (You may hit other boys.) On SPECIAL, the three other girls will beat up Taichi and send him into the air, and Misato delivers the final blow. Gives Taichi the largest and rarest speed boost. This boost is also the most dangerous to execute, as the game will end if Taichi hits the ground just to the left of Misato before hitting her, or if the player fails to execute the special.

Nanaca Specials

Hitting into Youko (black-haired girl) will generally block Taichi's next crash, but if Taichi then hits a girl when the tens digit of his total distance is a 9 (i.e. 2394 m), a very rare "Nanaca Special" may occur. When he is in range of the second person he must hit -- whether it is a boy or a girl -- "vs. C.F.F." will be displayed in the top right meter, along with a pointer at whom he must hit. However, he must hit a girl for Youko to appear and block; if Taichi hits a boy, the boy's effects will take place, regardless if he is a C.F.F. opponent or not.
Once the female C.F.F. opponent is hit, the player must click at the SPECIAL prompt. If activated, Youko will appear and attempt to block, but Yusa (a light-haired schoolgirl) will teleport, slap Taichi, and use one of four "Comic Force Field" (C.F.F.) abilities on him. This is always displayed upon activation of these specials, but depending on which girl Taichi collides into, the effect will be one of the following:

Misato (green): Type A - Double Impact: Taichi will become green, and any boost he gets will be doubled in power. Lasts for a very limited time.

Touko (red): Type B - Charge Blast: Taichi will become red, and every time he gets a speed boost from the girls, he gets a "charge". If the player would get a game over (via zero speed or Misato), Taichi will explode (and return to normal color), giving him extra boost depending on how many charges he got before.

Kiri (blue): Type C - Parachute Death Sentence Ver. Nanaca: Taichi will become blue, and will fly perfectly horizontally, passing over between 90 and 100 characters. The number remaining will appear to his right and count down as he flies. Once it reaches zero, he will resume normal flight. If the effect of another Nanaca special is active as this one is activated, the number of characters passed will be increased by about 100.

Miki (yellow): Type D - Bound Boost: Normally, Taichi will slow down if he hits the ground. This special reverses the effect; he will become yellow, and speed up if he hits the ground. He will still slow down if he runs into Tomoki, however.

If a Nanaca Special is activated while another remains in effect, the previous Nanaca Special will be negated.